US PATENT SUBCLASS 313 / 496
.~.~ Phosphor on anode segments

Current as of: June, 1999
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313 /   HD   ELECTRIC LAMP AND DISCHARGE DEVICES

483  DF  WITH LUMINESCENT SOLID OR LIQUID MATERIAL {4}
495  DF  .~ Vacuum-type tube {1}
496.~.~ Phosphor on anode segments {1}
497  DF  .~.~.~> With accelerating or control electrode

DEFINITION

Classification: 313/496

(under subclass 495) Subject matter wherein the anode is segmented and wherein the fluorescent or phosphorescent material is applied to the segments.